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No Sound on Windows? How to Fix Audio Problems (2026)

TG By The TechFix Guide Editorial Team  ·  Updated  ·  How we check our guides
A person plugging a headphone jack into the audio port on the back of a desktop computer tower under a wooden desk

You open a video, the picture is perfect, and the sound is gone. Or your music app insists it is playing while the room stays silent. Audio failures on Windows are frustrating precisely because the volume slider says everything is fine. The good news: the cause is almost always one of a short list of things — a wrong output device, a muted app, a stalled service, or a driver that gave up. Work through the steps below in order; each one is safe and takes only a couple of minutes.

Step 1: Check the Obvious Places First

Start with the volume mixer, not the speaker icon. Right-click the speaker icon in the taskbar and open Volume mixer. Windows remembers per-app volume levels, and browsers get muted individually all the time — the master slider can sit at 100 while Chrome or VLC sits at zero.

While you are there, confirm the correct output device. Open Settings → System → Sound and look at the Output dropdown. Windows switches to the last device it saw: a monitor plugged in over HDMI, a Bluetooth headset that came near the PC, a dock's headphone jack. If your sound has been coming out of a monitor's tiny speakers — or nowhere at all — this is why. Pick your real speakers or headphones and test immediately.

Step 2: Run the Built-in Troubleshooter

It sounds generic, but the audio troubleshooter fixes two of the most common problems outright: a disabled device and a service that stopped.

Go to Settings → System → Troubleshoot → Other troubleshooters, find Playing Audio and click Run. On recent versions of Windows 11 you can also right-click the speaker icon and choose Troubleshoot sound problems directly.

Let it apply whatever it offers, then test. If it reports that a service was restarted or a device was unmuted, that was your problem — and you are done.

Step 3: Restart the Windows Audio Services

Audio on Windows runs through background services that occasionally wedge, especially after sleep or a driver change.

  1. Press Win + R, type services.msc and press Enter.
  2. Find Windows Audio and Windows Audio Endpoint Builder in the list.
  3. Right-click each and choose Restart (or Start if it was stopped).
  4. Double-click Windows Audio and make sure Startup type is Automatic, or the problem quietly returns after every reboot.

Close the window and play something. This step alone resolves a remarkable share of "sound worked yesterday" reports, particularly on laptops that hibernate regularly.

Step 4: Check the Classic Playback Settings

The modern Settings page hides a few switches that still matter. In Settings → System → Sound, scroll down and open More sound settings (or press Win + R and run mmsys.cpl).

On the Playback tab, right-click an empty area and enable Show Disabled Devices — a device can be disabled outright and vanish from every normal list. Right-click your speakers and choose both Set as Default and Set as Default Communication Device.

Then open Properties → Advanced. Two useful fixes live here:

  • Untick Allow applications to take exclusive control of this device — a single app can lock every other one out.
  • If sound is silent or distorted, try a different Default Format such as 24 bit, 48000 Hz and click Test. A mismatched format produces silence on some hardware.

Step 5: Update, Roll Back, or Reinstall the Driver

If nothing above worked, the driver is the prime suspect.

Open Device Manager (right-click Start) and expand Sound, video and game controllers. Find your audio device — typically something with Realtek, Conexant, Intel Smart Sound or the laptop maker's name in it.

  • Try Update driver → Browse my computer → Let me pick: if more than one version is listed, choose a different one.
  • If the trouble began right after a driver update, choose Roll back driver instead.
  • Still stuck? Right-click the device → Uninstall device, tick Attempt to remove the driver, and restart. Windows reinstalls a fresh copy at boot.

Do not forget Windows Update → Advanced → Optional updates — audio drivers frequently arrive there — and the vendor's own support page for your exact model remains the most reliable source of all.

A driver that is "working properly" is not the same as one that is working correctly. If the audio device shows no warning icon but produces no sound, reinstalling it is not wasted effort.

Step 6: When Sound Goes to the Wrong Place

Modern setups route audio in surprising directions. A monitor connected by HDMI or DisplayPort announces itself as a speaker, and Windows happily switches to it. Bluetooth earbuds reconnect automatically the moment they power on. A USB headset can grab default status just by being plugged in.

None of these are faults — they are conveniences you did not ask for. The fix is to choose the output explicitly each time it changes: click the speaker icon, then the arrow next to the volume slider, and pick the device you want. If a specific monitor's audio is unwanted, right-click it in mmsys.cpl and Disable it for good.

Step 7: Rule Out the Hardware

Before you reinstall anything else, spend two minutes proving where the failure actually is.

  • Plug your headphones or speakers into a different port. Front-panel jacks are wired separately from the rear ones, and a loose internal cable can silence an entire front panel while rear audio works fine.
  • Try a different cable, and make sure powered speakers are actually switched on with their own volume knob up. It is embarrassing how often that is the whole story.
  • The cleanest isolation test: plug the same headphones into your phone. Sound works there? The headphones are fine and the PC is the problem. No sound anywhere? You have found your culprit, and no settings change will save a dead cable or a broken jack.

What Not to Bother With

Skip the one-click "driver updater" utilities — they mostly push generic drivers that fit worse than the one you already have. Registry tweaks for audio are a relic of older Windows versions and accomplish nothing on Windows 10 or 11. And do not buy a USB sound card until you have completed the steps above; software-side fixes resolve the large majority of silent PCs, and a cheap dongle merely masks an easy fix.

Quick Checklist

  • Volume mixer checked for muted apps
  • Correct output device selected in Settings
  • Audio troubleshooter run
  • Windows Audio and Endpoint Builder services restarted and set to Automatic
  • Disabled devices shown; default device and format confirmed
  • Driver updated, rolled back, or reinstalled
  • Hardware tested: another port, another cable, another device

Work through this in order and most silent PCs start talking again well before the last step. If sound still refuses to appear after all of it — and the hardware test proved your headphones and ports are fine — an inexpensive USB sound card is a perfectly sensible five-minute fix.